GtkEntry test set width

#include <gtk/gtk.h>

gint
main (gint argc, gchar **argv)
{
    GtkWidget *window;
    GtkWidget *grid;
    GtkWidget *entry1;
    GtkWidget *entry2;

    gtk_init(&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    grid = gtk_grid_new ();
    entry1 = gtk_entry_new ();
    entry2 = gtk_entry_new ();

    gtk_entry_set_width_chars (GTK_ENTRY (entry1), 6);

    gtk_grid_attach (GTK_GRID (grid), entry1, 0, 0, 1, 1);
    gtk_grid_attach (GTK_GRID (grid), entry2, 0, 1, 1, 1);
    gtk_container_add (GTK_CONTAINER (window), grid);

    g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);

    gtk_widget_show_all (window);

    gtk_main();

    return 0;
}